Clinical Research Directory

Effectiveness of Two Techniques in Injection Site Spotting for Botulinum Toxin Injections: Echography or Electro Stimulation.

Sponsor: University Hospital, Clermont-Ferrand

Summary

Botulinum toxin injections are an effective treatment of limb spasticity after stroke. Different tracking techniques are used to locate a proper injection spot. Palpatory technique is barely effective and induces a high risk of error. Localization by electro stimulation is frequently used in adults, but often requires multiple painful repositioning of the needle. Ultrasound tracking is sometimes used in children but not much in adults. The advantages of ultrasound-guided botulinum toxin injections are a painless localization and greater injection accuracy. Safety is therefore enhanced since intravascular injection is easily avoided. The few existing publications on the subject are essentially case reports. Few studies have focused on comparing different injection techniques and so far, no well-conducted study has highlighted superior efficiency of ultrasound-guided injections.

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